Pulp-feed regulator.



ALBERT SCHULTZ, OF DAYTON, OHIO.

PULP-FEED REGULATOR.

Specification of Letters Patent.

Application filed April 21, 1909.

Patented Dec. 1st, 1969. Serial No. 491,245.

To all whom ti may concern:

Be it known that I, ALnnI-rr SCHULTZ, a citizen of the United States, residing at Day ton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Pulp-Feed Regulators; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

This invention relates to new and useful improvements in regulators for feeding pulp to paper-making machines.

The invention is adapted for use in connection with the common type of pulp box in which there are three compartments, an entering compartment connected to the supply pump, a discharge compartment connected with the paper-making machine, and an over-flow compartment connected with the well from which the pulp is pumped. The pulp is supplied to the entering compartment from the aforesaid pump which is operated at the same speed for different weights of paper. It is therefore customary to place a gate within the box to regulate the amount of flow to the discharge compartmentand thence to the machine. The pump, however, does not always discharge evenly which results in a varied grade of paper.

The object therefore, of this invention is to regulate this gate automatically and thereby secure an even grade of paper.

Referring to the annexed drawings, Figure 1, is a top plan view of my invention. Fig. 2, is a sectional View on the line Z) 7) of Fig. 1. Fig. 3, is a sectional view on the line a a of Fig. 1.

In the following description, similar reference characters indicate corresponding parts.

The pulp receptacle or box 1 is divided into three compartments 4 5 and 6, by two division walls 2 and 3, compartment 6 is the entering compartment which is connected to a supply pump (not shown) by a pipe 9, the pump as before stated, having a pipe connection with the pulp well. Compartment 4 is the discharge compartment from which the pulp flows to the paper-making machine (not shown) through a pipe 7. The overflow compartment 5 is provided with an out let 8 connecting with the pulp well (not shown) from which the pulp is previously pumped. The pulp, which is in solution, enters the compartment 6 and overflows the wall 2. A gate 10 pivoted at 11 to the wall 2 diverts the flow into tl e compartments land5. \Vhen said gate is in a central position, the flow of pulp into the two compartments 4 and 5 will be equal, but if said gate is placed to one side, the flow of pulp will be diverted to one or the other of said compartments 4 and 5, depending upon the position of said gate.

The gate 10 is provided with a sleeve or telescopic connection 12 which engages a crank 13 on a rock shaft 1%, the latter hav ing bearings 17 and being provided with an extended arm 15 on the outer end of which is attached a float 16. The float 16 lies within the entering compartment 6 and rises and falls with the pulp solution in said compartment. It will therefore be seen that when the pulp in said compartment rises, the gate 10 will be drawn to the left, thus increasing the flow of pulp into the compartment 5 and maintaining a steady flow in the compartment 4. When the float 16 falls the gate will be drawn to the right, but the amount of pulp passing to the compartment 4 will not increase as the head also decreases in the entering compartment 6. The over-flow or upper edge of the wall 2 is preferably placed at an angle, as the stroke of the gate 10 is thereby made more effective. The angles of the upper end of the wall 2 converge downwardly to the center of the said wall, at which point, the gate 10 is pivoted. lVhen it is desired to increase the constant flow of pulp to the paper-making machine, in order to secure a heavier quality of paper, the telescopic connection 12 may be lengthened; if it is desired to secure a lighter quality of paper, said connection may be accordingly shortened, as will be readily understood.

In do not wish to limit myself to the particular type of gate shown and described, as it: will be readily seen that a sliding gate may be utilized for the purpose of regulating the feed of pulp.

I claim:

1. In a device of the type specified, a pulp box having entering, discharge, and overflow compartments, the construction of said box being such as to allow the pulp to flow from the entering compartment into the discharge compartment and the overflow compartment, a float in the entering compartment, and a gate pivoted below its center controlled by said float, said gate controlling the flow of pulp from the enterin g compartment.

2. In a device of the type specified, a pulp box having an entering compartment, a discharge compartment, and an over-flow compartment, said box being constructed to allow the pulp to flow from the entering compartment into the discharge and overflow compartments, a float within the entering compartment, an upright gate pivoted at its lower end to the wall which divides the entering compartn'ient from the discharge and over-flow compartments and a connection between said gate and said float whereby the gate is rocked to regulate the flow of pulp to the discharge or over flow compartment.

3.111 a device of the type specified, a pulp box having an entering compartment, and discharge and over-flow compartments, the wall separating the entering from the discharge and over-flow compartments having its upper edge tapered downwardly and converging at the center of said wall, a gate pivoted to the center of said wall, a float in the entering compartment, and a connection between said float and said gate, whereby the gate is automatically operated to regulate the teed of pulp from the entering conipartment to the discharge or over-flow compartments.

4. In a pulp regulator for paper-making machines, a pulp box having a main partition the upper edge of which is substantially V-shaped, a swinging gate pivoted to said partition and cooperating with the V-shaped edge thereof in regulating the flow of pulp, a float, and connections between said float and the gate for varying the opening between the upper edge of the partition and the gate.

In testlmony whereof I aflix my signature, in presence of two witnesses.

ALBERT SCHULTZ.

WVitnesses C. M. THEOBALD, R. J MOCARTY. 

